https://www.etsy.com/au/listing/497478288/sz85-natural-rich-red-orange-mexican?ref=shop_home_active_2

Ring Specs
Gemstone: Natural Mexican Fire Agate
Hardness – 6.5 – 7.0 Mohs scale
Gemstone size: TBA
Color: Iridescent colors of red, gold
Ring Size: US Sz.8.5; Australian & British Q 3/4
Metal: 925 Solid Sterling Silver